fix: refresh client container images

[aivarasko]

Problem

Docker Compose failed because statusim/nimbus-validator-client:v25.11.0 was not published and Docker returned manifest unknown. The Nimbus images require the multiarch tag format.

Changes

• Refresh all pinned execution, consensus, validator, distributed validator, Optimism, Taiko, and Aztec images.
• Use multiarch-v26.7.0 for both Nimbus images.

Testing

• Focused tests passed: go test ./configs ./internal/pkg/clients ./internal/pkg/generate
• Sedge build passed: go build ./cmd/sedge

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 24.47%. Comparing base (ae12d83) to head (afb2d66).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #550   +/-   ##
========================================
  Coverage    24.47%   24.47%           
========================================
  Files          122      122           
  Lines        20110    20110           
========================================
  Hits          4921     4921           
  Misses       14601    14601           
  Partials       588      588           

Flag	Coverage Δ
unittests	24.47% <ø> (ø)

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